/*
class cola{
    int c;
    public cola(int c) {
        this.c = c;
    }
}

class water extends cola{
    int a;
    int b;
    {
        super(c);
        System.out.println("构造代码段");
    }
    public water(int a, int b) {
        System.out.println("构造方法");
        this.a = a;
        this.b = b;
    }
}
public class test{
    public static void main(String[] args) {
        water w = new water(1,1);
    }
}
*/
